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A Classification of Forest Environments in the South Umpqua Basin (Classic Reprint) - Couverture rigide

Minore, Don

 
9780331416701: A Classification of Forest Environments in the South Umpqua Basin (Classic Reprint)

Synopsis

Excerpt from A Classification of Forest Environments in the South Umpqua Basin

Environments are not easily classified. Many interacting factors combine to produce any environment. Measuring all of these directly is impractical, even in a simple environment. For example, Penman (1965) recorded solar radiation, temperature, humidity, precipitation, soil moisture, wind velocity, and carbon dioxide in a barley field. The resulting data were expensive to obtain and diffit to integrate meaningfully. Further more, they were relevant to only a small field on a single summer day. Measuring all of the environmental factors in a large, complex area like the South Umpqua basin would be infeasible. Indirect measurements of site capacity (rennie 1963) or the environmental complex as a whole are more practicable.

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